Hyundai GENESIS COUPE BK 2010 Manual page 934

DTC Description
Checking output signals from injectors. Under detecting condition, if an output signal is high, ECM sets P0277.
MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.
DTC Detecting Condition
Item
DTC Strategy
Enable Conditions
Threshold value
Diagnosis Time
MIL On Condition
Specification
Diagnostic Circuit Diagram
Detecting Condition
• Signal High
• Engine running state
• 11V ≤ Battery voltage ≤ 16V
• Above conditions are met > 0.5sec.
• Short to battery
• Continuous (more than 5 sec. failure for every 10
sec.test)
• 2 Driving Cycles
Item
Injector
Possible Cause
• Poor connection
• Short to battery in harness
• Injector
• ECM
Coil resistance(Ω)
11.4 ~ 12.6Ω ( at 20°C/ 68°F)